. >> reporter: that is the sandy hook elementary shooting spree by a 20-year-old that took the lives of 20 1st graders and 6 adults. >> for this community. a think national local campaign. promoted by the mayor, retired fire captain. >> we hear it every day. young adults finding gun in their homes and going to a school and just this past week we had two shootings at schools that involved teachers and stuff like that. it has to stop. >> reporter: the city council put a measure on the ballot. volunteers do all of the rest. >> public schoolteachers, two of them have been killed by their students this past week. and years ago i had a student pick up a gun lying around and killed his sister. >> reporter: gun measures, safety measures worry advocates. >> there is a slippery slope. once you get it you will lose more than expected. >> reporter: chris chambers is a licensed gun dealer. >> if that their is the only place with these measures i know my customers they will go over to the next town to buy ammunition. they don't want people looking at what they are doing and punching. >> reporter: